Second Circuit Reaffirms Deference to Adverse Credibility Findings and the Immigration Judge’s Record-Development Role
Introduction
Zeng v. Bondi (2d Cir. Mar. 31, 2026) is a nonprecedential “summary order” denying a petition for review from a Board of Immigration Appeals (“BIA”) decision affirming an Immigration Judge’s (“IJ”) denial of asylum, withholding of removal, and relief under the Convention Against Torture (“CAT”).
Petitioner Jia You Zeng, a citizen of the People’s Republic of China, claimed persecution based on attendance at an underground Catholic church in China—specifically, that he was arrested and beaten. The core issues on review were (i) whether substantial evidence supported the agency’s adverse credibility determination, (ii) whether the BIA was required to discuss every IJ credibility ground to satisfy “totality of the circumstances” review, and (iii) whether the IJ’s questioning crossed the line into bias or a due process violation.
Although the order lacks precedential effect, it consolidates several recurring Second Circuit themes in credibility litigation: broad deference under the REAL ID Act framework, the permissibility of IJ probing questions to develop the record, and the consequences of abandoning challenges to independent credibility grounds.
Summary of the Opinion
The Second Circuit denied review, holding that the agency gave “specific, cogent reasons” with a “legitimate nexus” for disbelieving Zeng’s account, and that substantial evidence supported those reasons. The court emphasized inconsistencies between Zeng’s testimony and his wife’s testimony concerning: (1) when a mutual friend became Christian and (2) where the underground church leader lived and whether Zeng knew the location.
The court rejected Zeng’s argument that the BIA failed to consider the “totality of the circumstances” merely because it did not discuss every IJ credibility ground in detail. It also rejected Zeng’s claim that the IJ exhibited bias by asking questions beyond counsel’s examination, reiterating that IJs have an affirmative obligation to develop the record and may probe for details when testimony is sparse.
Finally, because asylum, withholding, and CAT relief rested on the same factual predicate, the adverse credibility ruling was dispositive of all three.
Analysis
Precedents Cited
1) Scope of review when the BIA affirms the IJ
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Yun-Zui Guan v. Gonzales, 432 F.3d 391 (2d Cir. 2005): The panel applied this rule to review both the BIA’s and the IJ’s decisions, including IJ reasoning the BIA did not explicitly discuss. This directly undercut Zeng’s theory that the BIA “declined to rely” on the IJ’s other grounds by not mentioning them.
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Xiao Ji Chen v. U.S. Dep't of Just., 471 F.3d 315 (2d Cir. 2006): Used for the presumption that the agency considered all evidence unless the record “compellingly suggests otherwise.” The court relied on this to hold that the BIA was not required to address every credibility point in writing.
2) Credibility framework and deference
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Hong Fei Gao v. Sessions, 891 F.3d 67 (2d Cir. 2018): Cited for the standards of review and the principle that adverse credibility must be supported by “specific, cogent reasons” and assessed under the “totality of the circumstances.” The panel treated the IJ/BIA’s reasons as meeting that threshold.
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Xiu Xia Lin v. Mukasey, 534 F.3d 162 (2d Cir. 2008): Cited for strong deference to IJ credibility determinations unless no reasonable factfinder could agree, and for the cumulative-effect principle (collateral discrepancies can collectively be consequential). The panel used this to reinforce that the inconsistencies—paired with other unchallenged IJ findings—sufficed.
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Likai Gao v. Barr, 968 F.3d 137 (2d Cir. 2020): Invoked to emphasize that even a single inconsistency may defeat a challenge to an adverse credibility finding, and multiple inconsistencies do so “more forcefully.”
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Siewe v. Gonzales, 480 F.3d 160 (2d Cir. 2007): Cited to support deference to IJ plausibility inferences grounded in “common sense and ordinary experience.” The panel used it to uphold the IJ’s skepticism that Zeng would be unaware of a friend’s long-known Christianity in a small village, especially given his wife’s asserted knowledge.
3) Corroboration and rehabilitation
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Biao Yang v. Gonzales, 496 F.3d 268 (2d Cir. 2007): Quoted for the principle that lack of corroboration can prevent an applicant from rehabilitating testimony already called into question. The panel referenced this alongside the IJ’s unchallenged finding that Zeng failed to rehabilitate credibility with reliable corroboration.
4) Abandonment and issue preservation
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Debique v. Garland, 58 F.4th 676 (2d Cir. 2023): Used twice to treat unargued challenges as abandoned—both as to IJ credibility grounds Zeng did not contest and as to future-persecution arguments tied to U.S. religious practice. This case functioned as a procedural “gatekeeper,” narrowing the court’s review.
5) IJ questioning, record development, bias, and due process
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Islam v. Gonzales, 469 F.3d 53 (2d Cir. 2006): Cited for the proposition that an IJ is not a passive judge and has an obligation to “establish and develop the record,” including probing inconsistencies. The panel contrasted appropriate probing with the improper hostility found in Islam.
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Jin Shui Qiu v. Ashcroft, 329 F.3d 140 (2d Cir. 2003), overruled on other grounds by Shi Liang Lin v. U.S. Dep't of Just., 494 F.3d 296 (2d Cir. 2007): Used to justify deeper IJ inquiry where an applicant offers “spare testimony,” including probing “incidental details” to test fabrication. The “overruled on other grounds” parenthetical signaled that the record-development point remains good law.
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Burger v. Gonzales, 498 F.3d 131 (2d Cir. 2007): Provided the due process standard—whether the applicant was denied a full and fair opportunity to present claims or fundamental fairness was otherwise compromised. The panel found no such deprivation, noting counsel was offered further questioning after the IJ’s examination.
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Ali v. Mukasey, 529 F.3d 478 (2d Cir. 2008): Cited for the remedy when IJ conduct creates an appearance of bias/hostility preventing meaningful review. The panel distinguished Ali and found no comparable indicia of improper assumptions or disrespect in the record.
6) Statutory standards integrated into the precedent framework
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8 U.S.C. § 1252(b)(4)(B): The “any reasonable adjudicator” substantial-evidence constraint on reversing factual findings.
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8 U.S.C. § 1158(b)(1)(B)(iii): The REAL ID Act credibility factors, including demeanor, plausibility, consistency, and that discrepancies need not go to the “heart” of the claim.
Legal Reasoning
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Credibility is evaluated holistically, but supported by discrete, reviewable reasons.
The panel framed credibility under § 1158(b)(1)(B)(iii), then tested whether the agency articulated “specific, cogent reasons” with a legitimate nexus, as required by Xiu Xia Lin and Hong Fei Gao. It concluded the reasons were specific (identifiable conflicts between spouses’ testimony) and logically tethered to the asserted persecution narrative.
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Inconsistencies between close witnesses can rationally undermine plausibility.
The court upheld the inference that it was implausible for Zeng to be unaware of a friend’s long-standing Christianity where his wife (same age, same school, small-village setting) claimed to have known years earlier. Under Siewe v. Gonzales, that inference was permissible as common-sense reasoning from record facts.
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Failure to challenge independent credibility grounds is dispositive.
Zeng did not contest other IJ findings (additional inconsistencies, demeanor, implausibility, lack of corroboration). Applying Debique v. Garland, the panel treated those unargued points as abandoned, leaving multiple unchallenged bases supporting the overall credibility ruling.
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The BIA need not write an essay to satisfy “totality of circumstances” review.
The panel rejected the notion that the BIA must discuss each IJ reason. Under Yun-Zui Guan v. Gonzales and Xiao Ji Chen v. U.S. Dep't of Just., the court presumed the BIA considered the record and treated the IJ’s full reasoning as part of what it could review.
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IJ questioning aimed at developing a thin record is proper absent hostility or unfairness.
Responding to the bias claim, the panel relied on Islam v. Gonzales and Jin Shui Qiu v. Ashcroft to reaffirm that IJs may probe beyond counsel’s questions, especially when testimony is “spare,” to test credibility. Under Burger v. Gonzales and Ali v. Mukasey, the panel found neither a denial of a fair opportunity to present claims nor an appearance of bias preventing meaningful review.
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Once credibility falls, all fact-dependent relief falls with it.
Quoting Hong Fei Gao v. Sessions, the panel held that because asylum, withholding, and CAT rested on the same factual predicate, the adverse credibility finding foreclosed all three.
Impact
As a summary order, Zeng v. Bondi is not binding precedent, but it is likely to be cited for its faithful application of existing Second Circuit doctrine in three practical areas:
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Credibility litigation strategy: It underscores that appellants must challenge each independent credibility ground (demeanor, implausibility, inconsistencies, corroboration). Leaving any significant pillar untouched invites an abandonment finding and makes reversal unlikely.
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BIA opinion drafting and appellate review: It reinforces that the BIA may affirm without discussing every IJ reason, and the court may still consider the IJ’s undisputed grounds under Yun-Zui Guan v. Gonzales.
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IJ conduct and due process claims: It clarifies (again) that vigorous IJ questioning is not itself bias; the line is crossed when questioning or commentary reflects hostility, stereotypes, or prevents meaningful participation—circumstances the panel found absent here.
Complex Concepts Simplified
- Adverse credibility determination
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A finding that the applicant’s testimony is not reliable. In asylum cases, credible testimony often supplies the key facts; if the IJ finds the applicant not credible, the claim frequently fails unless strong independent evidence fills the gap.
- Substantial evidence review (8 U.S.C. § 1252(b)(4)(B))
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A very deferential standard on factual issues: the court must uphold the agency unless the record would compel any reasonable adjudicator to reach the opposite conclusion.
- REAL ID Act “totality of the circumstances” credibility (8 U.S.C. § 1158(b)(1)(B)(iii))
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The IJ can consider demeanor, plausibility, and inconsistencies (even on points not central to the claim). Small discrepancies can matter, particularly when they accumulate.
- Corroboration
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Additional evidence (documents, letters, testimony) supporting the applicant’s account. If testimony is already doubted, missing or weak corroboration can prevent rehabilitation.
- Issue abandonment (waiver)
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If a petitioner does not meaningfully argue an issue in the brief, the court will typically treat it as abandoned and will not decide it on the merits.
- Due process in removal proceedings
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Requires a full and fair opportunity to present claims. Even if an IJ is active in questioning, due process is not violated absent unfairness—such as preventing testimony, refusing relevant evidence, or displaying bias that undermines the integrity of the hearing.
Conclusion
Zeng v. Bondi reinforces three core propositions in Second Circuit immigration review: (1) adverse credibility determinations grounded in specific inconsistencies and plausible inferences receive substantial deference; (2) the BIA is not required to explicitly discuss every IJ credibility rationale for the court to consider the full set of grounds; and (3) IJs may actively develop the record—probing sparse testimony and inconsistencies—without thereby creating bias or a due process violation, absent hostility or fundamental unfairness.